55166560066017 has 24 divisors (see below), whose sum is σ = 82579482837600. Its totient is φ = 36398554927488.

The previous prime is 55166560066001. The next prime is 55166560066069. The reversal of 55166560066017 is 71066006566155.

55166560066017 is a `hidden beast` number, since 5 + 5 + 1 + 6 + 6 + 560 + 0 + 6 + 60 + 17 = 666.

It is not a de Polignac number, because 55166560066017 - 2⁴ = 55166560066001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55166560166017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108323167 + ... + 108831252.

It is an arithmetic number, because the mean of its divisors is an integer number (3440811784900).

Almost surely, 2^{55166560066017} is an apocalyptic number.

It is an amenable number.

55166560066017 is a deficient number, since it is larger than the sum of its proper divisors (27412922771583).

55166560066017 is an equidigital number, since it uses as much as digits as its factorization.

55166560066017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217154622 (or 217154519 counting only the distinct ones).

The product of its (nonzero) digits is 6804000, while the sum is 54.

The spelling of 55166560066017 in words is "fifty-five trillion, one hundred sixty-six billion, five hundred sixty million, sixty-six thousand, seventeen".